Key Considerations when Choosing a Servo Robot for Injection Molding

Author:SWITEK
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Release Date:2026.08.26
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Views:855

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Q

Key Considerations when Choosing a Servo Robot for Injection Molding

A

As the equipment with the highest linear motion efficiency in automated injection molding production, servo robots can independently perform pickup, placement, and stacking operations, or cooperate with external fixtures and EOAT to form complex automation systems.

When purchasing, first clarify your injection molding machine's tonnage, platen dimensions, and safety door height (platen dimensions determine the stroke, while safety door height determines whether parts can be smoothly removed over the mold). During specific hardware and performance evaluations, focus on these 6 core details:

01. Evaluate Payload and Machine SpecsPayload Selection

Ensure the rated payload of the robot meets the total weight of the product and EOAT without affecting operation speed. Heavy payloads increase equipment size and deadweight; selection can be customized among small, medium, large, and ultra-high-speed series based on production requirements.

02. Select Arm Structure Based on Factory HeightSpace Adaptation

For restricted workshops with height around 5 meters, telescopic arms or side-entry robots are optional. The telescopic design reduces arm retracted height and operates more stably than single-stage designs under equal speed and payload.

03. Inspect Guide Rails and Rack/Gear TransmissionsMechanical Precision

High-quality robots mostly feature high-precision dual linear guide rails combined with precision rack-and-gear transmissions, enabling low-vibration, ultra-high-speed, and low-noise operation. The machining accuracy and locking strength of the dual guide rail mounting surfaces directly relate to machine rigidity.

04. Focus on Servo Drive Brand and PrecisionCore Drive

The quality of the servo driver directly determines overall operational stability and positioning accuracy. High-quality servo motor drives can achieve micron-level repeatability, ensuring accurate and consistent finished product pickup and placement.

05. Check Lightweight Design and Solenoid SealingDurable Protection

Adopting lightweight aluminum alloy or composite components reduces traverse axis load and failure rates; fully sealed solenoid valve assemblies effectively block workshop oil stains and dust erosion, extending service life.

06. Review Electrical Wiring and Safety StandardElectrical Safety

Pay attention to standardized layout of power lines and electrical control circuits. Terminal wiring must not have unanchored spliced joints to prevent safety hazards such as poor contact or electric shock caused by moisture and corrosion.

Selection Summary: Servo robots are the core hardware of injection molding factory automation upgrades. Comprehensive considerations ranging from machine tonnage matching, mechanical precision, drive brand, to electrical details ensure long-term, stable, and high-efficiency production.
SWITEK Contact Information
WhatsApp/WeChat/Phone: +86 18665171961
Address: No.5, Tangbian Nanwei Industrial Zone, Chashan Town, Dongguan City, Guangdong Province, China



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